S-97832A240 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing maintenance costs.
• Superior thread engagement and reliability due to the Class 3A thread fit, minimizing the risk of loosening in high-vibration applications.
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding mechanical assemblies.
• Secure and non-slip fastening enabled by the knurled socket head and 5/64" hex drive, allowing for high torque application without tool slippage.
• Precision shoulder for accurate component alignment with controlled diameter and length tolerances, ensuring consistent assembly and reduced rework.
• Broad compatibility and easy installation with standard UNC coarse threads and right-hand direction, speeding up assembly processes.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated markets and sustainable operations.

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and electronic enclosures. Its 2-56 UNC coarse thread and Class 3A thread fit provide secure fastening in applications susceptible to vibration, reducing the need for frequent retightening. The knurled socket head with a 5/64" hex drive ensures reliable torque transmission, preventing damage during installation in confined spaces. The precisely machined shoulder acts as a spacer or pivot, maintaining alignment in assemblies like bearings, gears, and linkages, which minimizes wear and extends equipment lifespan. Made from durable stainless steel with Rockwell B55 hardness, it resists corrosion and deformation, making it a cost-effective solution for long-term performance in industrial and OEM settings.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precise engagement. Dimensions include a thread diameter of 0.086", shoulder diameter of 3/32" (tolerance: -0.004" to -0.002"), and shoulder length of 3/8" (tolerance: -0.005" to 0.005"), ensuring consistent quality. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting use in regulated industries without environmental concerns.